Mercurial > vim
diff src/regexp_nfa.c @ 6594:3cca9b0cc1a0 v7.4.623
updated for version 7.4.623
Problem: Crash with pattern: \(\)\{80000} (Dominique Pelle)
Solution: When the max limit is large fall back to the old engine.
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Tue, 10 Feb 2015 18:18:17 +0100 |
| parents | 599112d00aa9 |
| children | 2c7f279d419c |
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--- a/src/regexp_nfa.c +++ b/src/regexp_nfa.c @@ -2034,9 +2034,10 @@ nfa_regpiece() } /* The engine is very inefficient (uses too many states) when the - * maximum is much larger than the minimum. Bail out if we can - * use the other engine. */ - if ((nfa_re_flags & RE_AUTO) && maxval > minval + 200) + * maximum is much larger than the minimum and when the maximum is + * large. Bail out if we can use the other engine. */ + if ((nfa_re_flags & RE_AUTO) + && (maxval > minval + 200 || maxval > 500)) return FAIL; /* Ignore previous call to nfa_regatom() */ @@ -4254,7 +4255,6 @@ state_in_list(l, state, subs) * Add "state" and possibly what follows to state list ".". * Returns "subs_arg", possibly copied into temp_subs. */ - static regsubs_T * addstate(l, state, subs_arg, pim, off) nfa_list_T *l; /* runtime state list */ @@ -4392,6 +4392,7 @@ skip_add: subs = &temp_subs; } + /* TODO: check for vim_realloc() returning NULL. */ l->t = vim_realloc(l->t, newlen * sizeof(nfa_thread_T)); l->len = newlen; }